54 results about "Potassium superoxide" patented technology

The subject invention provides a potentially economically viable method for the preparation of hydrogen peroxide (H2O2) in deep eutectic solvents (DES). H2O2 is then used for the destruction of small to large quantities of sulfur and nitrogen mustards and lewisite, their homologous / analogues, and similar chemical warfare agents at ambient conditions in DES without producing any toxic by-products. Furthermore, H2O2 has been used for the destruction of small to large quantities of halogenated hydrocarbons, their homologous / analogues, and similar hazardous chemicals at ambient conditions. H2O2 can be formed by either the electrochemical reduction of oxygen in DES in the presence of water or by dissolving Group 1 (alkali metals) or Group 2 (alkaline earth metals) superoxides, e.g. potassium superoxide, in DES in the presence of water, with / without chemicals used for the enhancement of the solubility of the metal superoxide in the DES, e.g. crown ethers.

The subject invention provides a potentially economically viable process for the destruction of small to large quantities of halogenated hydrocarbons, their homologous / analogues, and similar hazardous chemicals at ambient conditions using superoxide ion in deep eutectic solvents. The superoxide ion is either electrochemically generated by the reduction of oxygen in deep eutectic solvents or chemically by dissolving Group 1 (alkali metals) or Group 2 (alkaline earth metals) superoxides, e.g. potassium superoxide, in deep eutectic solvents.

Disclosed herein are oxygen generating compositions. More specifically, the oxygen generating compositions comprise potassium superoxide or sodium peroxide, a material for stabilizing the reactivity and oxidizing power of potassium superoxide or sodium peroxide, and optionally at least one selected from an oxidation catalyst of carbon monoxide, a material for improving the moldability and processability of the composition and a material for increasing initial carbon dioxide absorption rate. The oxygen generating compositions can be utilized in a wide range of applications. The material for stabilizing the reactivity and oxidizing power of potassium superoxide or sodium peroxide is selected from calcium hydroxide (Ca(OH)2), aluminum hydroxide (Al(OH)3), magnesium hydroxide (Mg(OH)2), barium hydroxide (Ba(OH)2), calcium carbonate (CaCO3), talc and clay. The oxidation catalyst of carbon monoxide is selected from copper oxide (CuO), manganese oxide (MnO) and a mixture thereof (hopcalite). The material for improving the moldability and processability of the oxygen generating compositions is selected from glass powder, glass fiber, ceramic fiber, steel wool, bentonite, kaolinite, sodium silicate and potassium silicate. Since the oxygen generating compositions have stabilized reactivity and oxidizing power, they can be used in household goods. In addition, since the oxygen generating compositions have a higher compressive strength than pure potassium superoxide or sodium peroxide, they can be processed into various shapes.

The subject invention provides a potentially economically viable method for the preparation of reactive superoxide ion in deep eutectic solvents (DES). The superoxide ion can be used for many applications, e.g. the degradation of hazardous chemicals at ambient conditions or in the synthesis of some special chemicals, e.g. carboxylic acids, aldehydes, and ketones from the corresponding alcohols. The superoxide ion can be formed by either the electrochemical reduction of oxygen in DES or by dissolving Group 1 (alkali metals) or Group 2 (alkaline earth metals) superoxides, e.g. potassium superoxide, in DES, with / without chemicals used for the enhancement of the solubility of the metal superoxide in the DES, e.g. crown ethers.

The invention discloses a potassium superoxide medical plate for an underground emergency refuge air regeneration device in a coal mine. The potassium superoxide medical plate comprises the following raw materials in part by weight: 94 to 96 parts of oxygenating and carbon absorbing medical powder and 4 to 6 parts of reinforcing agents; and the oxygenating and carbon absorbing medical powder comprises 75 to 85 weight percent of KO2, 8 to 13 weight percent of K2O2 and 7 to 12 weight percent of K2O. According to the potassium superoxide medical plate, the content of all active ingredients is appropriate, so that the oxygen releasing rate is reduced, the oxygen is stably and reliably generated, and the ratio of the absorbed carbon dioxide to the released oxygen is matched with the respiratory quotient of a human body; by adding auxiliary adding agents, the porosity of the medical plate is increased under the condition that the structural strength is not changed, so that the carbon dioxide penetration capacity is improved, and absorption of the medical plate to the carbon dioxide is promoted; and the humidity application range of the medical plate is expanded to over 90 percent, but the humidity application range of the conventional potassium superoxide medical plate is not more than 60 percent. The potassium superoxide medical plate is suitable for closed large spaces, high-temperature and high-humidity environments and crowded places.

The invention discloses a convenient all-weather chemical oxygenation device which comprises an oxygen inhalation tube accommodating room, a water storage room and an oxygen generating reaction room. Powdery potassium superoxide and manganese dioxide are placed in the oxygen generating reaction room; an oxygen outlet guide tube with a first switch and a water inlet tube with a second switch are arranged in the water storage room; one end of the oxygen outlet guide tube is connected with the oxygen generating reaction room, the other end of the oxygen outlet guide tube penetrates through the water storage room to be communicated with the oxygen inhalation tube accommodating room, and a retractable oxygen inhalation tube comprising an oxygen inhalation tube and a buffer tube is connected onto the oxygen outlet guide tube; the water inlet tube is communicated with the water storage room, and the quantity of water flowing into the oxygen generating reaction room is controlled via the second switch; and the oxygen inhalation tube accommodating room for accommodating the retractable oxygen inhalation tube is arranged on the water storage room, a mask is connected onto the retractable oxygen inhalation tube, an elastic band and an adjusting card are arranged on the mask, and an oxygen inhalation tube button is further disposed on the water storage room. The convenient all-weather chemical oxygenation device is simple and practical, is convenient to operate and carry, safe in use and free of any negative effects, and is unaffected by factors such as external environments, weather, time and air temperature.